hi, I suffered the same before a month. due to nipples were not pointed, my son was not able to latch so I used silicone nipples but that needs to be sterliise every time and have high risk of infection also the infant will get confused when you will switch to your nipples and he will suck hard (cause artificial nipples are hard one ) thinking those are same , and it will create more problems for breast.
take some antibiotics and use nipcare . only it will give relief. antibiotics will cure the cracks and you won't feel pain while feeding.
my very personal experience. I get recover in 10 days from this problem.
If you want, I can share antibiotics name which my ped gave me.